These Periodic Comets Stun and Amaze Us Again and Again

Today we give you eight comets that have an orbit. These celestial bodies travel throughout space on a clearly defined path, so if you miss it, it'll most certainly be back. Some of these you'll recognize but a few will leave you scratching your head.

Brorsen-Metcalf is a comet that was first discovered in 1847 by Theodor Brorsen. This comet has an orbital period of 70 years so keep an eye out on June 8, 2059 because that's when it's coming by next.